OEM Carrier Direct Spark Ignition (DSI) Control Board LH33WP002 for Model N6D48NG480098

This is the genuine OEM Direct Spark Ignition (DSI) control board for the Carrier N6D48NG480098 packaged gas/electric unit. The DSI control board serves as the brain of the heating system — managing the ignition sequence, monitoring flame presence, controlling the inducer and blower motors, and executing safety shutdowns. When this board fails, common symptoms include a complete no-heat condition, repeated ignition lockouts, erratic burner cycling, or a system that sparks but never establishes a stable flame.

• Specs: OEM Part Number LH33WP002 | Direct Spark Ignition (DSI) control | 24V control circuit compatible | Factory-programmed timing sequences for inducer pre-purge, spark trial, and post-purge | Onboard diagnostic LED for fault code readout
• OEM vs Generic: This OEM board ships with factory-calibrated ignition timing, safety lockout thresholds, and pre-tested relay contacts. Aftermarket DSI boards frequently use non-matched timing logic that can cause nuisance lockouts, premature heat exchanger stress, or void equipment warranties — not a risk worth taking on a gas appliance.
• Install Difficulty: 3/5 — Disconnect power and gas before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone or camera for wiring documentation, and a multimeter to verify 24V control voltage before and after installation. Label all low-voltage wires prior to removal. DSI boards involve gas system interlocks — if uncomfortable, consult a licensed HVAC technician.
• Warranty: 1-year OEM manufacturer warranty against defects. In-stock and ships same business day from our climate-controlled warehouse.

Compatibility: Engineered specifically for the Carrier N6D48NG480098 packaged heating and cooling unit. Always cross-reference OEM part number LH33WP002 against the data plate inside your unit's control compartment before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before every order — contact us and we'll make sure you get the right board the first time.